Answers

2015-08-23T17:29:25+08:00
Use the continuous division method and the answer is 10 cause 2×2×3×5=60 then 2×3×3×5=90 So the common factor is 10
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2015-08-23T18:24:24+08:00
2x2x3x5=60
2x3x3x5=90
when you multiply 2x3x5=30
hence,30 is greatest common factor of 60 and 90
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